<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    hello
    <p>用户名:{{ username }}</p>
    <p>{{ gender }}</p>
    <p>{{ person.age }}</p>
    <p>{{ person.name }}</p>
    <p>{{ websites['google'] }}</p>
    <p>{{ websites['baidu'] }} </p>
</body>
</html>